Maxxam polyolefin replaces aluminum and reduces weight in electric vehicle part Delivered a high-impact nylon formulation with equal performance and 80% less weight Therma-Tech™ provided thermal conductivity and reduced part weight in vehicle light heat sink

Applications ranging from trucking and trailers to pipeline reinforcement benefit from the light weight, high strength and impact resistance of continuous glass fiber reinforced rPET. In addition, Avient will also highlight composite materials and engineered-fiber solutions that offer high strength, weight reduction, and corrosion resistance for products across a broad range of industries and markets: Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint

Three Months Ended June 30, 2025 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income attributable to Avient common shareholders $ 52.6 $ 0.57 $ 33.6 $ 0.36 Special items, after-tax (Attachment 3) 5.7 0.07 21.8 0.24 Amortization expense, after-tax 15.2 0.16 14.8 0.16 Adjusted net income / EPS $ 73.5 $ 0.80 $ 70.2 $ 0.76 (1) Per share amounts may not recalculate from figures presented herein due to rounding Six Months Ended June 30, 2025 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income attributable to Avient common shareholders $ 32.4 $ 0.35 $ 83.0 $ 0.90 Special items, after-tax (Attachment 3) 81.4 0.89 27.3 0.30 Amortization expense, after-tax 29.7 0.32 29.7 0.32 Adjusted net income / EPS $ 143.5 $ 1.56 $ 140.0 $ 1.52 (1) Per share amounts may not recalculate from figures presented herein due to rounding 7 Attachment 2 Avient Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended June 30, Six Months Ended June 30, 2025 2024 2025 2024 Sales $ 866.5 $ 849.7 $ 1,693.1 $ 1,678.7 Cost of sales 588.6 592.1 1,152.0 1,142.9 Gross margin 277.9 257.6 541.1 535.8 Selling and administrative expense 181.8 185.1 444.3 369.3 Operating income 96.1 72.5 96.8 166.5 Interest expense, net (24.7) (26.6) (51.6) (53.2) Other expense, net (0.5) (0.9) (0.9) (1.8) Income before income taxes 70.9 45.0 44.3 111.5 Income tax expense (17.4) (11.2) (10.7) (28.0) Net income $ 53.5 $ 33.8 $ 33.6 $ 83.5 Net income attributable to noncontrolling interests (0.9) (0.2) (1.2) (0.5) Net income attributable to Avient common shareholders $ 52.6 $ 33.6 $ 32.4 $ 83.0 Earnings per share attributable to Avient common shareholders - Basic: $ 0.57 $ 0.37 $ 0.35 $ 0.91 Earnings per share attributable to Avient common shareholders - Diluted: $ 0.57 $ 0.36 $ 0.35 $ 0.90 Cash dividends declared per share of common stock $ 0.2700 $ 0.2575 $ 0.5400 $ 0.5150 Weighted-average shares used to compute earnings per common share: Basic 91.5 91.3 91.5 91.3 Diluted 91.8 92.2 91.8 92.0 8 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended June 30, Six Months Ended June 30, 2025 2024 2025 2024 Cost of sales: Restructuring costs, including accelerated depreciation $ (2.6) $ 0.2 $ (6.7) $ 3.8 Environmental remediation costs (1.8) (21.8) (6.7) (25.8) Reimbursement of previously incurred environmental costs 0.6 — 1.9 — Impact on cost of sales (3.8) (21.6) (11.5) (22.0) Selling and administrative expense: Restructuring and employee separation costs (2.7) (2.8) (7.8) (3.5) Legal and other (0.5) (2.3) (0.9) (5.8) Cloud-based enterprise resource planning system impairment — — (86.3) — Acquisition related costs — (0.5) — (2.1) Impact on selling and administrative expense (3.2) (5.6) (95.0) (11.4) Impact on operating income (7.0) (27.2) (106.5) (33.4) Interest expense, net - financing costs (0.3) (1.0) (2.0) (1.0) Other income, net — 0.1 — 0.1 Impact on income before income taxes (7.3) (28.1) (108.5) (34.3) Income tax benefit on special items 1.6 7.0 27.1 8.4 Tax adjustments(2) — (0.7) — (1.4) Impact of special items on net income $ (5.7) $ (21.8) $ (81.4) $ (27.3) Diluted earnings per common share impact $ (0.07) $ (0.24) $ (0.89) $ (0.30) Weighted average shares used to compute adjusted earnings per share: Diluted 91.8 92.2 91.8 92.0 (1) Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; costs incurred directly in relation to acquisitions or divestitures; employee separation costs resulting from personnel reduction programs, plant realignment costs, executive separation agreements; asset impairments; settlement gains or losses and mark-to- market adjustments associated with gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performance period; one-time, non-recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results. (2) Tax adjustments include the net tax impact from non-recurring income tax items and certain adjustments to uncertain tax position reserves and valuation allowances. 9 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (In millions) (Unaudited) June 30, 2025 December 31, 2024 ASSETS Current assets: Cash and cash equivalents $ 474.5 $ 544.5 Accounts receivable, net 523.4 399.5 Inventories, net 387.5 346.8 Other current assets 109.0 131.3 Total current assets 1,494.4 1,422.1 Property, net 986.1 955.3 Goodwill 1,754.6 1,659.7 Intangible assets, net 1,529.3 1,450.4 Other non-current assets 368.9 323.6 Total assets $ 6,133.3 $ 5,811.1 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 0.5 $ 7.7 Accounts payable 439.4 417.4 Accrued expenses and other current liabilities 297.4 331.0 Total current liabilities 737.3 756.1 Non-current liabilities: Long-term debt 2,020.0 2,059.3 Deferred income taxes 306.9 260.4 Other non-current liabilities 695.1 405.7 Total non-current liabilities 3,022.0 2,725.4 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,358.3 2,313.8 Noncontrolling interest 15.7 15.8 Total equity 2,374.0 2,329.6 Total liabilities and equity $ 6,133.3 $ 5,811.1 10 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Six Months Ended June 30, 2025 2024 Operating activities Net income $ 33.6 $ 83.5 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 91.9 89.2 Cloud-based enterprise resource planning system impairment 71.6 — Share-based compensation expense 4.6 9.0 Changes in assets and liabilities: Increase in accounts receivable (102.9) (97.0) Increase in inventories (20.8) (27.3) Increase in accounts payable 1.4 11.9 Environmental insurance recovery 34.0 — (Decrease) increase in incentive accruals (40.6) 5.1 Accrued expenses and other assets and liabilities, net (11.1) (11.3) Net cash provided by operating activities 61.7 63.1 Investing activities Capital expenditures (39.5) (55.8) Proceeds from plant closures — 3.4 Other investing activities — (2.1) Net cash used by investing activities (39.5) (54.5) Financing activities Payments on long-term borrowings (50.2) (4.5) Cash dividends paid (49.4) (47.0) Other financing activities (6.8) (3.3) Net cash used by financing activities (106.4) (54.8) Effect of exchange rate changes on cash 14.2 (10.2) Decrease in cash and cash equivalents (70.0) (56.4) Cash and cash equivalents at beginning of year 544.5 545.8 Cash and cash equivalents at end of period $ 474.5 $ 489.4 11 Attachment 6 Avient Corporation Business Segment Operations (Unaudited) (In millions) Operating income and earnings before interest, taxes, depreciation and amortization (EBITDA) at the segment level does not include: special items as defined in Attachment 3; corporate general and administration costs that are not allocated to segments; intersegment sales and profit eliminations; share-based compensation costs; and certain other items that are not included in the measure of segment profit and loss that is reported to and reviewed by the chief operating decision maker.

Three Months Ended March 31, 2025 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net (loss) income attributable to Avient common shareholders $ (20.2) $ (0.22) $ 49.4 $ 0.54 Special items, after-tax (Attachment 3) 75.7 0.82 5.5 0.06 Amortization expense, after-tax 14.5 0.16 14.9 0.16 Adjusted net income / EPS $ 70.0 $ 0.76 $ 69.8 $ 0.76 (1) Per share amounts may not recalculate from figures presented herein due to rounding 7 Attachment 2 Avient Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended March 31, 2025 2024 Sales $ 826.6 $ 829.0 Cost of sales 563.4 550.8 Gross margin 263.2 278.2 Selling and administrative expense 262.5 184.2 Operating income 0.7 94.0 Interest expense, net (26.9) (26.6) Other expense, net (0.4) (0.9) (Loss) income before income taxes (26.6) 66.5 Income tax benefit (expense) 6.7 (16.8) Net (loss) income $ (19.9) $ 49.7 Net income attributable to noncontrolling interests (0.3) (0.3) Net (loss) income attributable to Avient common shareholders $ (20.2) $ 49.4 (Loss) earnings per share attributable to Avient common shareholders - Basic: $ (0.22) $ 0.54 (Loss) earnings per share attributable to Avient common shareholders - Diluted: $ (0.22) $ 0.54 Cash dividends declared per share of common stock $ 0.2700 $ 0.2575 Weighted-average shares used to compute (loss) earnings per common share: Basic 91.5 91.2 Diluted 91.5 92.0 8 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended March 31, 2025 2024 Cost of sales: Restructuring costs, including accelerated depreciation $ (4.1) $ 3.6 Environmental remediation costs (4.9) (4.0) Reimbursement of previously incurred environmental costs 1.3 — Impact on cost of sales (7.7) (0.4) Selling and administrative expense: Restructuring and employee separation costs (5.1) (0.7) Legal and other (0.4) (3.5) Cloud-based enterprise resource planning system impairment (86.3) — Acquisition related costs — (1.6) Impact on selling and administrative expense (91.8) (5.8) Impact on operating income (99.5) (6.2) Interest expense, net - financing costs (1.7) — Impact on (loss) income before income taxes (101.2) (6.2) Income tax benefit on special items 25.5 1.4 Tax adjustments(2) — (0.7) Impact of special items on net (loss) income $ (75.7) $ (5.5) Diluted (loss) earnings per common share impact $ (0.82) $ (0.06) Weighted average shares used to compute adjusted earnings per share: Diluted 91.8 92.0 (1) Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; costs incurred directly in relation to acquisitions or divestitures; employee separation costs resulting from personnel reduction programs, plant realignment costs, executive separation agreements; asset impairments; settlement gains or losses and mark-to- market adjustments associated with gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performance period; one-time, non-recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results. (2) Tax adjustments include the net tax impact from non-recurring income tax items and certain adjustments to uncertain tax position reserves and valuation allowances. 9 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (In millions) (Unaudited) March 31, 2025 December 31, 2024 ASSETS Current assets: Cash and cash equivalents $ 456.0 $ 544.5 Accounts receivable, net 489.6 399.5 Inventories, net 372.8 346.8 Other current assets 111.9 131.3 Total current assets 1,430.3 1,422.1 Property, net 951.8 955.3 Goodwill 1,684.0 1,659.7 Intangible assets, net 1,464.5 1,450.4 Other non-current assets 280.6 323.6 Total assets $ 5,811.2 $ 5,811.1 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 7.8 $ 7.7 Accounts payable 422.2 417.4 Accrued expenses and other current liabilities 268.2 331.0 Total current liabilities 698.2 756.1 Non-current liabilities: Long-term debt 2,061.3 2,059.3 Deferred income taxes 268.0 260.4 Other non-current liabilities 469.3 405.7 Total non-current liabilities 2,798.6 2,725.4 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,298.3 2,313.8 Noncontrolling interest 16.1 15.8 Total equity 2,314.4 2,329.6 Total liabilities and equity $ 5,811.2 $ 5,811.1 10 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Three Months Ended March 31, 2025 2024 Operating activities Net (loss) income $ (19.9) $ 49.7 Adjustments to reconcile net (loss) income to net cash used by operating activities: Depreciation and amortization 45.3 44.3 Cloud-based enterprise resource planning system impairment 71.6 — Share-based compensation expense 2.4 3.3 Changes in assets and liabilities: Increase in accounts receivable (83.7) (81.9) Increase in inventories (20.3) (12.3) (Decrease) increase in accounts payable (1.0) 1.7 Environmental insurance recovery 34.0 — Decrease in incentive accruals (53.1) (16.8) Accrued expenses and other assets and liabilities, net (26.4) (30.8) Net cash used by operating activities (51.1) (42.8) Investing activities Capital expenditures (12.5) (24.4) Proceeds from plant closures — 2.0 Other investing activities — (2.1) Net cash used by investing activities (12.5) (24.5) Financing activities Payments on long-term borrowings — (2.7) Cash dividends paid (24.7) (23.5) Other financing activities (3.6) (1.9) Net cash used by financing activities (28.3) (28.1) Effect of exchange rate changes on cash 3.4 (6.1) Decrease in cash and cash equivalents (88.5) (101.5) Cash and cash equivalents at beginning of year 544.5 545.8 Cash and cash equivalents at end of period $ 456.0 $ 444.3 11 Attachment 6 Avient Corporation Business Segment Operations (Unaudited) (In millions) Operating income and earnings before interest, taxes, depreciation and amortization (EBITDA) at the segment level does not include: special items as defined in Attachment 3; corporate general and administration costs that are not allocated to segments; intersegment sales and profit eliminations; share-based compensation costs; and certain other items that are not included in the measure of segment profit and loss that is reported to and reviewed by the chief operating decision maker.

With a weight savings of more than 50% versus plywood, these continuous-fiber reinforced thermoplastic composite panels offer boat manufacturers a lighter, more efficient alternative to traditional marine construction materials. Beyond weight reduction, Hammerhead panels can accelerate installation and labor productivity because they replace the typical wood, hand lay-up and vacuum assisted process with a consolidated, ready-to-install panel. Launched in 2016 with the acquisitions of Gordon Composites and Polystrand, the company's Advanced Composites portfolio offers both thermoplastic and thermoset composite solutions with exceptional strength-to-weight ratios. 

These materials were developed to help manufacturers of 3D molded interconnect devices (MIDs) using laser direct structuring (LDS) to meet critical requirements, such as high design flexibility, multi-function integration, miniaturization, and weight reduction. Increased integration of electronic and mechanical functions using MIDs can meet the challenge that many industries and markets face; namely, finding simple, light weight components without compromising production efficiency and increasing cost,” said Flight Xu, general manager, Specialty Engineered Materials Asia, Avient.     Barrier technologies that preserve the shelf-life and quality of food, beverages, medicine and other perishable goods through high-performance materials that require less plastic •    Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation •    Breakthrough technologies that minimize wastewater and improve the recyclability of materials and packaging across a spectrum of end uses

Dyneema® is a premium brand of ultra-high-molecular-weight polyethylene (UHMWPE) that is 15 times stronger than steel yet light enough to float on water. This exceptional strength-to-weight ratio is used in Dyneema® fabrics to minimize weight and maximize durability – enabling products that keep elite adventurers light on their feet.

With fluidized bed and electrostatic spray coating, you can achieve salt spray resistance, cold temperature flexibility, and adhere dark color to metal substrates without a primer. Ultra-High Molecular Weight Polyethylene

This created an opportunity for our interns to gain real-world, professional experience remotely. Non-toxic and heavy-metal-free ingredients and biodegradable carrier resins. The Solution This customer used Polystrand™ continuous fiber reinforced thermoplastic (CFRTP) tapes and laminates in the trailer space of their heavy truck applications.

Some customers want to reduce weight but maintain strength and function, while others need protection against UV light, harsh temperatures, and other elements that might diminish product life. Polystrand™ Tapes and Laminates reduce weight to improve fuel economy, and enable thin-walling and material reduction through reinforcement of traditional materials.